NGC 896 in NB HOS
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NGC 896 is an emission nebula in the constellation Cassiopeia. This is the bright knot of nebulosity just outside of the Heart Nebula, IC 1805. This is a narrowband in the CFHT HOS palette with Ha mapped to red, OIII mapped to green, and SII mapped to blue.
Distance: 6000 light years
Size: 70 LY across
Camera: SBIG ST-10XME
Telescope: Astrophysics Starfire 140 EDT F7.5
Mount: Astro-Physics Mach1 GTO with Advanced Telescope Systems portable pier
Images: An HOS NB image with 85 subexposures of 15 minutes each with 32 of Ha, 27 of OIII, & 26 of SII for a total time of 21 hours & 15 minutes.
Date: November 2012
Software: Camera, mount, and guider control - CCD Commander & MaximDL; calibration, stacking, & color creation in CCDStack, and further processing in Photoshop CS6.